feat: add JoeAppEngine OPC UA nodes, fix DCL auto-reconnect and quality push

- Add JoeAppEngine folder to OPC UA nodes.json (BTCS, AlarmCntsBySeverity, Scheduler/ScanTime)
- Fix DataConnectionActor: capture Self in PreStart for use from non-actor threads,
  preventing Self.Tell failure in Disconnected event handler
- Implement InstanceActor.HandleConnectionQualityChanged to mark attributes Bad on disconnect
- Fix LmxFakeProxy TagMapper to serialize arrays as JSON instead of "System.Int32[]"
- Allow DataType and DataSourceReference updates in TemplateService.UpdateAttributeAsync
- Update test_infra_opcua.md with JoeAppEngine documentation

src/ScadaLink.CLI/Commands/DebugCommands.cs

@@ -6,16 +6,16 @@ namespace ScadaLink.CLI.Commands;
 
 public static class DebugCommands
 {
-    public static Command Build(Option<string> contactPointsOption, Option<string> formatOption)
+    public static Command Build(Option<string> contactPointsOption, Option<string> formatOption, Option<string> usernameOption, Option<string> passwordOption)
     {
         var command = new Command("debug") { Description = "Runtime debugging" };
 
-        command.Add(BuildSnapshot(contactPointsOption, formatOption));
+        command.Add(BuildSnapshot(contactPointsOption, formatOption, usernameOption, passwordOption));
 
         return command;
     }
 
-    private static Command BuildSnapshot(Option<string> contactPointsOption, Option<string> formatOption)
+    private static Command BuildSnapshot(Option<string> contactPointsOption, Option<string> formatOption, Option<string> usernameOption, Option<string> passwordOption)
     {
         var idOption = new Option<int>("--id") { Description = "Instance ID", Required = true };
         var cmd = new Command("snapshot") { Description = "Get a point-in-time snapshot of instance attribute values and alarm states" };
@@ -23,7 +23,7 @@ public static class DebugCommands
         cmd.SetAction(async (ParseResult result) =>
         {
             return await CommandHelpers.ExecuteCommandAsync(
-                result, contactPointsOption, formatOption,
+                result, contactPointsOption, formatOption, usernameOption, passwordOption,
                 new DebugSnapshotCommand(result.GetValue(idOption)));
         });
         return cmd;